we stopped mohammed elbaradei as he tried to leave. just one question for cbs news! >> reporter: he's a former presidential candidate and told us he doesn't trust the government's offer to negotiate. >> this is a ploy and we are not -- we will continue to push until we get a proper mechanism to develop a developpic constitution and to make sure that the goals of this uprising have been fulfilled which is justice, freedom, and social equality. >> reporter: are you going to try and stop the referendum taking place at all? >> we are doing everything possible because we believe that this referendum is null and void, has no legitimacy. >> reporter: egyptians who agreed that they wanted democracy now can't agree on anything else. >> pelley: and holly williams is joining us from cairo. holly, you've been covering the story for us for some time. what's coming next? >> well, it's difficult to see a solution as things stand. president morsi says he wants to negotiate but in the same breath he says he's determined to put this constitution to a referendum, a vote, in ten day's t